Improvement in implements for sifting coal-ashes



J. WALDRON. IMPLEMENTS Fon SIFTING coAL-ASHES.

N. PETERS, PMOT0 L|THOGRAPNER. WASHINBTGN, D. C.

UNITED STATES PATENT CEEIGE,

JOHN WALDRON, OF NEW BEDFORD, MASSACHUSETTS.

IMPROVEMENT IN IMPLEMENTS FOR SIFTING COAL-A SHES.

Specification forming part of Letters Patent No. l 70,317, dated November 23, 1875; application tiled J une 4, 1875.

To all Iwhom it may concern:

Be it known that I, JOHN WALDRON, 0f New Bedford, in the county of Bristol and State of Massachusetts, have invented a new and useful Improvement in Implements for Sifting Goal-Ashes, and other kindred.l purposes, which improvement is fully set forth in the following specification, reference being had to the accompanying drawings.

In Figure 1, A represents the sifter, which is made of tin, cast-iron, or other metal, the bottom of lwhich is perforated with elongated holes from the center .to the circumference, at equal distances from each other, on a true circle. In the center of the pan A is a perpendicular spindle rising above the pan. B is a hollow shaft, which revolves on the spindle B. C C C G C C are teeth, ofsome metallic substance, attached to the shaft B, which are so placed that they move between the perforated holes on the circle in the bottom of pan A.-

In Fig. 2, A is a view ofthe pan, resting, by a flange, b', on the tub E', with the cover Gattached. Dl is a key, attached to handle D2 and fitting the top of the shaft B', which it turns in the pau A either forward orbackward.

I claim as my invention- The inclosed and iixed sieve A, provided with spindle B,in combination with the sleeve B, provided with the stirrers C C C C, andthe removable handle D1 D2, constructed and arranged substantially as shown.'

JOHN WALDRON.

Witnesses:

DAVID B. FoLGEE, SoUTHwAED POTTER, 2d. 

